. A The training arena covers 7,800 square feet. How long must Hanna's rope be if she stands in the center and guides the horse in a circle around the perimeter of the arena? Hint: This means she is trying to find the radius of her circular arena. Use 3.14 for pi also please explain

60

step-by-step explanation:

in simplified version   it would be x ≤-4

step-by-step explanation:

multiply each term in x ≤-4 by -1

the circumference of a circle is, 10.676 cm.

step-by-step explanation:

the formula for circumference of a circle is given by:

where

c is the circumference of a circle and

d is the diameter of a circle.

given: diameter(d) = 3.4 cm and use

substitute these values in [1] we get;

cm

therefore, the circumference of a circle is, 10.676 cm